JP6403568B2 - Power supply - Google Patents

Description

  The present invention relates to a power supply apparatus provided with a two-power fusion circuit capable of supplying fusion power to a load.

In the power supply device (see Patent Document 1 below) filed by the applicant of the present application, as will be described below, a combined high-voltage combined power can be generated with a combined high voltage and supplied to an output load.
That is, the low voltage and large current power stored in the storage battery that can charge and discharge low voltage and large current and the high voltage and small current power are fused inside the storage battery, and the voltage of these two powers is While the combined high voltage is combined, the currents of these two electric powers are not added, and a combined high voltage is obtained by superposing a small current and a large current, and merges with the combined high voltage.

JP 2012-244743 A

In the above power supply device, when a storage battery for low voltage / large current storage is not used, the first power of low voltage / large current and the second power of high voltage / small current are directly fused, It was said that it was impossible to extract only a large current of the first power and a high voltage of the second power.
In addition, a circuit (device) for limiting the current to a small current is required in the second power supply unit that generates high voltage and small current power.
Therefore, according to the present invention, a storage battery and a small current limiting circuit (device) can be omitted, and a combined power obtained by fusing a large current (low voltage) and a high voltage (small current) with a simple circuit is supplied to the load. It is an object of the present invention to provide a power supply device that can be used.

In order to achieve the above object, the invention described in claim 1 is a large current power supply unit capable of supplying a large current power at a low voltage, a high voltage having a higher potential than the large current power supply unit, and the A high voltage power supply unit capable of supplying a small current power having a current value smaller than that of the large current power supply unit by a transformer having a primary coil and a secondary coil, and the low voltage supplied from the large current power supply unit A second power merging unit configured to fuse a power of a current and a power of a small current with a high voltage supplied from the high voltage power supply unit inside the secondary coil; Connected to the two power merging unit and connected to the total power smoothing unit to supply the smoothed DC power to the total power smoothing unit that converts the combined power into a smoothed DC power. Power conditioner with any output power That it comprises a and is characterized in.
The invention according to claim 2 is the above invention, wherein the transformer of the high-voltage power supply unit includes one primary coil in one iron core or two in two iron cores. The two power coils are connected to the series connection line and the series connection line for connecting one end of the two secondary coils in series. A tap wire, an input side (−) pole terminal connected to the tap wire, an end connection wire connected to each other end of the two secondary coils to which the series connection wire is not connected, and 2 Each of the end connection lines or the series connection lines, and an output side (+) pole terminal to which both the end connection lines are connected together, and the input side (−) pole terminal. In contrast, the large current power supply unit is connected to the two power fusion unit. , Supplying a large current power at the low voltage, and the high voltage power supply unit connects two primary coils in parallel, or a parallel connection line connecting the two primary coils in parallel, or the two common secondary coils. The secondary power fusion unit includes a primary coil, and the high-voltage and low-current power generated from the two secondary coils and the low-voltage and high-voltage supplied from the high-current power source unit. The electric power of the current is fused inside the two secondary coils in the high-voltage power supply unit to generate a high-current fused power at a high voltage.

According to the first aspect of the present invention, the input power of the large current power supply section is preferably AC 100 V (volt) or AC 200 V, and the output is converted to a set (proper) low voltage and large current, and the high voltage The voltage of the input power of the power supply unit is preferably AC 110V or less. In this case, the optimum output voltage is not less than 180V and not more than 440V. When the voltage on the input side is set to AC 200V, the output power voltage of the power regulator is preferably AC 380V or higher.
The output (low voltage / high current) power of the large current power supply unit is sent to the secondary coil of the transformer provided in the two power fusion unit (two power fusion circuit) of the high voltage power supply unit. It flows in the same flow direction as the high voltage and small current AC power generated at the time of generation, and at this time, in the secondary coil of the transformer, the DC low voltage A combined high voltage is generated by combining the low voltage of the large current power and the high voltage generated in the secondary coil, and the large current is not combined with the small current generated in the secondary coil, Both of them overlap to become a superposed high current, and these combined high voltage and superposed high current are fused in the secondary coil to form a pair of fused power, which is supplied to the power conditioner. Is automatically adjusted to the rated output voltage and supplied to the output side load.
According to the second aspect of the present invention, two transformers of the two-power fusion circuit according to the first aspect are used, and four rectifiers of the rectifier circuit are replaced with two rectifiers, and the primary coil side of the two transformers. Is connected in parallel or in common, the secondary coil side is connected in series, both ends of the wire are provided with rectifiers (diodes, etc.), and a two-power fusion circuit with two rectifiers is used, thereby reducing the loss due to the rectifier by half. , Can increase efficiency.

It is a schematic circuit block diagram of the power supply device which concerns on Embodiment 1 of this invention. It is a schematic circuit block diagram of the power supply device which concerns on Embodiment 2 of this invention.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings as appropriate. In addition, this invention is not limited to the following embodiment.

<Embodiment 1>
FIG. 1 is a schematic circuit configuration diagram of a power supply device 1 according to the first embodiment. The power supply device 1 includes a large current power supply unit 10, a high voltage power supply unit 20, a two-power fusion circuit 30, and a total power smoothing circuit. 40 and a power adjuster 60.

The large-current power supply unit 10 generates a DC output current with a low voltage and a large current, and is a low-voltage / large-current converter provided with two secondary coils (series connection) and one primary coil having the same number of turns. 11, two rectifiers 12 a and 12 b, two smoothing capacitors C 1 and C 2 connected in parallel between the (+) polar line 13 a and 13 b and the (−) polar line 13 c, and the (+) polar line 13 a and The large current smoothing circuit 13 provided with the smoothing reactor L1 connected in series between 13b is provided.
The input terminals 10a and 10b of the primary coil of the low voltage large current converter 11 are connected to an external power source, the two secondary coils are directly connected, and the tap wire 10d is connected in the middle of the connecting connection 10c. A (−) polar wire is connected to the input (−) polar terminal 13d of the large current smoothing circuit 13. Furthermore, the right connection line 10 e and the left connection line 10 f of the two secondary coils are both connected to the input side (+) terminal 13 e of the large current smoothing circuit 13. The positions of the cathodes of the two rectifiers 12a and 12b are provided on the input side (+) pole terminal 13e side of the large current smoothing circuit 13.
The large current power supply unit 10 that generates the low voltage and large current may be, for example, an AC (alternating current) -DC (direct current) switching power supply device, a direct current variable power supply device, or the like in addition to the circuit shown in the figure.

The high voltage power supply unit 20 includes a high voltage transformer 21.
In the high voltage transformer 21, the number of turns of the primary coil and the secondary coil is 1: 1.2. The number of turns of the primary coil and the secondary coil may be 1: 1 or 2: 1.
The input terminals 20a and 20b of the high voltage transformer 21 are connected to an external power source.

A two-power fusion circuit 30 as a two-power fusion unit includes a right output terminal 21a of a secondary coil that allows a large current of a high-voltage transformer 21 to pass through, and a right input terminal 50a of a bridge-type rectifier circuit 50. While connecting with the right connection line 30a, the left output terminal 21b of a secondary coil and the left input terminal 50b of the rectifier circuit 50 are connected with the left connection line 30b.
The bridge-type rectifier circuit 50 forms a bridge shape with four diodes D1, D2, D3, and D4. The output side (+) pole terminal 10 g of the large-current power supply unit 10 and the (−) pole terminal 30 c of the two-power fusion circuit 30 are connected by the A connection line 14.
A (−) pole wire 50c provided inside the bridge-type rectifier circuit 50 connects the (−) pole terminal 30c of the two-power fusion circuit 30 and the anodes of the diodes D1 and D2. The cathode of the diode D1 is connected to the right (+) line 50d, and the cathode of the diode D2 is connected to the left (+) line 50e.
The right (+) line 50d and the left (+) line 50e are connected to the output side (+) terminal 30d of the two-power integration circuit 30, and in the right (+) line 50d, the output side (+) terminal 30d and the diode D1. The diode D3 is provided between the output side (+) terminal 30d and the cathode of the diode D2 on the left (+) line 50e. The cathode positions of the diodes D3 and D4 are on the output side (+) terminal 30d side.

The total power smoothing circuit 40 as the total power smoothing unit includes smoothing capacitors C3 and C4 connected in parallel between the (+) polar lines 40a and 40b and the (−) polar line 40c, and the (+) polar line 40a. , 40b, the smoothing reactor L2 is connected in series. The (+) pole line 40a and the input side (+) pole terminal 40d of the total power smoothing circuit 40 are connected, and the input side (+) pole terminal 40d and the output side (+) pole terminal 30d of the two-power fusion circuit 30 Are connected by a B connection line 15.
Further, the output side (−) terminal 10 h of the large current power supply unit 10 and the input side (−) terminal 40 e of the total power smoothing circuit 40 are connected by a C connection line 16.

The power regulator 60 is a circuit that regulates power, and for example, a power conditioner, an inverter, a switching power supply device, a booster device, a battery charger, or the like can be used.
The output side (+) terminal 40 f of the total power smoothing circuit 40 and the input side (+) pole terminal 60 a of the power regulator 60 are connected by the D connection line 17. Further, the output side (−) terminal 40 g of the total power smoothing circuit 40 and the input side (−) pole terminal 60 b of the power regulator 60 are connected by the E connection line 18.
Output terminals 1 a and 1 b of the power conditioner 60 are connected to a load 70.

Next, an operation example (at the time of output load) of the power supply device 1 will be described.
When single-phase AC power (preferably around AC 100 V) is supplied from an external power source to the input-side terminals 20a and 20b of the high-voltage power supply unit 20, the single-phase AC power enters the primary coil of the high-voltage transformer 21 and is primary The voltage of the secondary coil is boosted to 1.2 times the voltage of the coil. Note that the voltage of the secondary coil may be 1: 1 with the voltage of the primary coil, or may be reduced in pressure.
The power of the secondary coil of the high voltage power supply unit 20 passes through the diodes D3 and D4 of the bridge-type rectifier circuit 50, passes through the smoothing reactor L2 of the total power smoothing circuit 40, and enters the power regulator 60 on the high voltage side. Supply high voltage power.
Preferably, the input voltage is AC110V or lower and the output voltage is 180V or higher. When the input voltage is around AC 200V, the output voltage is preferably set to 380V or more.

On the other hand, when external power, for example, AC 100V or AC 200V AC power is supplied to the input terminals 10a and 10b on the primary coil side of the low voltage large current converter 11 provided in the large current power supply unit 10, the secondary coil side As a result, the voltage is greatly reduced, the current is greatly increased in inverse proportion, and low voltage and large current power is generated. The low voltage and large current power generated in the secondary coil passes through the right and left rectifiers 12a and 12b and the smoothing reactor L1 of the large current smoothing circuit 13, and is fed from the output side (+) terminal 10g to the two power fusion circuit. 30 passes through the input side (−) terminal 30c, flows through the (−) polar line 50c of the bridge-type rectifier circuit 50, passes through the diodes D1 and D2 alternately, and passes through the secondary coil of the high voltage transformer 21. In the direction in which AC is generated, it flows through the secondary coil together with AC power. The AC high voltage generated in the secondary coil is combined with the low voltage generated in the large current power supply unit 10 in the secondary coil, and is transmitted to the load 70 as a combined high voltage.
Further, the large current supplied from the large current power supply unit 10 is not summed with the small current generated in the secondary coil, and both the currents overlap and flow into the load 70 as a superposed large current. In other words, in the secondary coil, the combined high voltage and the large polymerization current are merged to generate a merged high voltage combined DC power and the combined DC power is adjusted to an appropriate power by the power regulator 60. And supplied to the load 70. For example, when a power conditioner for 4 kW (kilowatt) is adopted as the power conditioner 60, the output is AC 200 V × 20 A (ampere), and the load 70 is 10 Ω (ohms) when 4 kW.
Note that the small current value (A) generated inside the secondary coil of the high voltage transformer 21 (1: 1.2) is the output load value (V) of the secondary coil generated voltage value (V) of the high voltage transformer 21. It is almost equal to the value divided by Ω). The output load value is, for example, 10Ω obtained by dividing the output AC 200V by 20A.

Then, the effect of the above power supply device 1 is demonstrated.
In the power supply device 1, a high voltage / small current is generated by the secondary coil of the high voltage transformer 21 of the high voltage power supply unit 20, and the low voltage / high current power generated by the large current power supply unit 10 is generated as two powers. In the secondary coil of the high voltage transformer 21 of the high voltage power supply unit 20, the high voltage and the low voltage are combined to create a combined high voltage, and the small current and the large current are added together. However, both currents overlap each other and become a large polymerization current and flow to the load 70.
Therefore, in the secondary coil of the high voltage transformer 21 of the high voltage power supply unit 20, the combined high voltage and the combined large current are merged to generate a combined DC voltage and combined large current, and the power regulator At 60, the fused DC power can be adjusted to an appropriate power (voltage / current) and supplied to the load 70.

A specific example of implementation relating to the power supply device 1 will be described.
As the load 70 on the output side, a 10Ω resistor was used, and the voltage value and current value at the time of 10Ω load were measured. A power conditioner was used as the power conditioner 60.
The high voltage transformer 21 is 11.6 A at 101.3 V AC on the primary coil side, the coil turns ratio of the primary coil and the secondary coil is 1: 1.2, and the maximum passing current of the secondary coil is 37. 4A.
The passing power of the bridge-type rectifier circuit 50 was 44.2 A at a maximum of 98V.
The low voltage large current converter 11 of the large current power supply unit 10 was 5.8 A at AC 101.3 V on the primary coil side. The turn ratio of the primary coil and the secondary coil was 7: 1.
The passing power of the rectifiers 12a and 12b was 40.6A at 14V.
The energization power of the large current smoothing circuit 13 was 39A at 13.5V.
The passing power (combined voltage) of the total power smoothing circuit 40 was 123.7 V and 35.9 A.
The input voltage of the power adjuster 60 was 123.7 V, the input current was 35.9 A, and the maximum output power was approximately AC 200 V and approximately 20 A.
The voltage value and current value at each point are generated with respect to the test resistance value 10Ω of the load 70 on the output side, and are not provided with a current limiting circuit or the like. This is an inevitable numerical value.

The input power from the external power supply to the primary coil side of the high voltage transformer 21 of the high voltage power supply unit 20 is 11.6 A at AC 101.3 V. This current value is a current value generated corresponding to the resistance value 10Ω of the output load 70.
The voltage at the input side (+) terminal 60a of the power regulator 60 is 123.7V, and the power at the output side terminals 1a and 1b is about AC200V × about 20A for a 10Ω load of the load 70.
The current 35.9A of the input side (+) terminal 60a of the power conditioner 60 is as follows. 5.8 A at AC 101.3 V is supplied from the external power source to the input terminals 10 a and 10 b on the primary coil side of the low voltage large current converter 11 of the large current power supply unit 10. This 5.8 A current is for a 35.9 A current. The current of 5.8 A is increased at a low voltage by the low voltage large current converter 11 to 40.6 A, passes through the rectifiers 12 a and 12 b and the large current smoothing circuit 13 to become 39 A, and is a two-power fusion circuit 30, where the current 7.74 A generated in the secondary coil of the high voltage power supply unit 20 is not summed, flows directly toward the load 70, and is 35 at the input side (+) terminal 60 a of the power regulator 60. .9A polymerization high current. The current of 7.74 A overlaps with the current of 35.9 A and flows to the load 70 together.
The voltage 13.5 V output from the output side (+) terminal 10 g of the large current power supply unit 10 is combined with 117.9 V of the high voltage power supply unit 20 in the two-power integration circuit 30 to be 129.2 V. And is supplied to the input side (+) terminal 60a of the power conditioner 60. Therefore, at the input side (+) terminal 60a, 123.7V × 35.93A = 4445VA (maximum).

When the voltage of the input power of the high voltage power supply unit 20 is set to AC 110 V or less, the output side voltage is preferably set to AC (DC) 180 V or more. When the output voltage is used at AC 100 V, for example, a transformer that reduces the voltage from AC 200 V (AC 400 V) to AC 100 V (output), an inverter that reduces the voltage from DC 200 V (DC 400 V) to AC 100 V, a power conditioner, or the like is used.
On the other hand, when the input voltage is around AC 200V, the output voltage is preferably 380V or more. When the output voltage is once increased from 200V to 400V and then reduced to AC100V, a reduced pressure transformer, an inverter for pressure reduction, or the like is used.
In order to reduce the input voltage, it is desirable that the voltage on the output side is once boosted to approximately twice or more the input voltage. When the voltage is not boosted more than twice, the input power is relatively increased.

The configuration and the like of the power supply device 1 according to the first embodiment will be summarized.
A power supply device 1 provided with a two-power integration circuit 30 for supplying power to a load 70, a large-current power supply unit 10 for supplying a large-current power at a low voltage to the two-power integration circuit 30, and a large-current power supply unit A high-voltage power supply unit 20 that generates a low-current power having a high voltage with a potential higher than 10 and a current value smaller than that of the large-current power supply unit 10, and a low-voltage and large-current power of the large-current power supply unit 10; And a two-power integration circuit 30 capable of supplying high-voltage and small-current power from the high-voltage power supply unit 20, a total power smoothing circuit 40 that converts the pulsating DC fusion DC power to smooth DC power, and the smoothing DC The power supply device 1 includes a power regulator 60 that automatically adjusts power to a rated output voltage (for example, AC 202V).
In the power supply device 1, low-voltage power is transmitted with a large current from the large-current power supply unit 10 to the secondary coil of the high-voltage transformer 21 of the two-power fusion circuit 30, and the generated power and the secondary coil are generated. The integrated DC power generated by fusing the high-voltage and small-current power in the secondary coil to generate a load 70 with the power of the rated output voltage (setting) stably set by the power regulator 60. Can be supplied.

<Embodiment 2>
FIG. 2 is a schematic circuit configuration diagram of the power supply device 1X according to the second embodiment. The power supply device 1X is the same as the first embodiment except for the high-voltage power supply unit and the two-power fusion circuit. Constituent elements similar to those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted as appropriate.
The power supply device 1 </ b> X includes a large current power supply unit 10, a high voltage power supply unit 20 </ b> X, a two-power fusion circuit 30 </ b> X, a total power smoothing circuit 40, and a power regulator 60, and can be connected to a load 70.

The high voltage power supply unit 20X includes a first transformer 22X and a second transformer 22Y for high voltage.
The input terminal 22a of the first transformer 22X and the input terminal 22b of the second transformer 22Y are connected by an F connection line 22c. Further, the input side terminal 22d of the first transformer 22X and the input side terminal 22e of the second transformer 22Y are connected by a G connection line 22f. With these connections, the first transformer 22X and the second transformer 22Y are connected in parallel. That is, the F connection line 22c and the G connection line 22f constitute a parallel connection line that connects the first transformer 22X and the second transformer 22Y in parallel.

The two power fusion circuit 30X is configured such that the secondary coil side of the first transformer 22X and the second transformer 22Y is connected in series with an H connection line 22g (series connection line), and the right terminal 22h of the secondary coil of the first transformer 22X; The output side (+) pole terminal 30d of the two-power fusion circuit 30X is connected by an I connection line 22i (right end connection line). Further, the left terminal 22j of the secondary coil of the second transformer 22Y and the output side (+) pole terminal 30d of the two-power fusion circuit 30X are connected by a J connection line 22k (left end connection line). The tap line 22l is connected to the center of the H connection line 22g, and the other end of the tap line 22l is connected to the input side (−) pole terminal 30c of the two-power fusion circuit 30X.
Further, a rectifier D5 is provided at the center of the I connection line 22i, and a rectifier D6 is provided at the center of the J connection line 22k. The cathode side of the rectifiers D5 and D6 is directed to the output side (+) electrode terminal 30d of the two-power fusion circuit 30X.

Next, an example of operation of the power supply device 1X (during output load) will be described.
When AC power is supplied from an external power source to the input terminals 20a and 20b of the high voltage power supply unit 20X, the AC power is supplied to the primary coils of the first transformer 22X and the second transformer 22Y for high voltage.
The flow direction of the AC power flowing in the secondary coils of the first transformer 22X and the second transformer 22Y is such that a right rectifier D5 that flows in the right direction and a left rectifier D6 that flows in the left direction are provided. The first transformer 22X flows only in the right direction, and the second transformer 22Y flows only in the left direction. The rectifiers D5 and D6 cause the current in the left direction and the current in the right direction to merge to generate a pulsating direct current at the output side (+) pole terminal 30d of the two-power fusion circuit 30X.
The low-voltage and large-current DC power generated by the large-current power supply unit 10 passes through the input-side (-) pole terminal 30c and the tap line 22l of the two-power fusion circuit 30X, and passes through the first transformer 22X and the second transformer 22Y. It flows in the secondary coil. And it flows in these secondary coils with the alternating current electric power which generate | occur | produces in the reverse direction with the forward direction in the secondary coil of the 1st transformer 22X and the 2nd transformer 22Y. At this time, the AC voltage generated in these secondary coils is combined with the low voltage generated in the large current power supply unit 10 in the secondary coil, and is transmitted to the load 70 as a combined high voltage.
Further, the large current supplied from the large current power supply unit 10 is not summed with the small current generated in the secondary coil, and both the large current and the small current overlap and flow into the load 70 as a superposed large current. In other words, the combined high voltage and the high polymerization current are merged in the secondary coil, and a combined DC voltage of the combined high voltage and high polymerization current is generated. The combined DC power is adjusted to the set output power (voltage / current) by the power regulator 60 and supplied to the load 70.

Then, the effect of the above power supply device 1X is demonstrated.
In the dual power fusion circuit 30X of the power supply device 1X, a right rectifier D5 and a left rectifier D6, a secondary coil of the first transformer 22X, and a secondary coil of the second transformer 22Y are provided, and generated in the secondary coil. The AC power is converted into pulsating DC power by flowing the AC traffic in different directions.
The low-voltage and large-current power generated by the large-current power supply unit 10 is transferred from the input side (-) pole terminal 30c of the two-power fusion circuit 30X to the secondary coil of the first transformer 22X and the secondary coil of the second transformer 22Y. The high voltage generated inside the secondary coil and the low voltage generated by the large current power supply unit 10 are combined inside the secondary coil to generate a combined high voltage. Further, the small current generated in the secondary coil and the large current generated in the large current power supply unit 10 are not added in these secondary coils, and the small current and the large current are superposed and superposed. The electric current is combined with the combined high voltage and is supplied to the load 70 as a combined DC power.
Four rectifiers for converting alternating current to direct current are used in the two-power fusion circuit 30 in the power supply device 1 of the first embodiment (rectifiers D1 to D4), but two in the power supply device 1X of the second embodiment (rectifier D5). ˜D6), the rectifier passing loss is smaller (halved) in the power supply device 1X of the second embodiment, and the efficiency is increased accordingly.

<Example of change>
In addition, the other form of this invention which mainly changes the said Embodiment 1, 2 is illustrated.
The AC voltage, AC current, frequency or phase supplied to the input terminals 10a and 10b of the large current power supply unit 10 is supplied from an external power supply to the input terminals 20a and 20b of the high voltage power supply unit 20. It does not have to match the AC voltage, AC current, frequency, or phase.
The full-wave rectifier circuit may be any circuit as long as it is a circuit capable of full-wave rectification in addition to the circuits illustrated in the first and second embodiments.
In addition to the circuit of the first embodiment, the large current power supply unit 10 can use a switching power supply device, a CVCC DC stabilized power supply device, or the like.
The total power smoothing circuit 40 may adopt another circuit as long as the total power can be smoothed.
The power conditioner 60 can be a voltage booster, a servo amplifier, or the like in addition to a power conditioner, an inverter, a battery charger, and a switching power supply device. Further, a boosting device such as a boosting chopper circuit or a storage battery module (one unit or a plurality of units in parallel) may be installed between the total power smoothing circuit 40 and the power regulator 60. Furthermore, when an inverter, a switching power supply device, or the like is used as the power regulator 60, when a smoothing circuit is incorporated in the device, the smoothing circuit of the present device (claims) may not be incorporated.
In the high voltage transformers (high voltage transformer 21, first transformer 22X, second transformer 22Y) in the first and second embodiments, the turns ratio of the primary coil and the secondary coil is 1: 1.2. The ratio can be changed to an appropriate number of turns, such as 1: 1, 1: 2, etc. (pressure increase), or 2: 1, etc. (pressure reduction).
In the power supply device 1X according to the second embodiment, the first transformer 22X and the second transformer 22Y are provided independently. However, the iron core and the primary coil are shared to be one each, and the secondary coil is two. A transformer may be adopted.
The large current power supply unit 10 may be replaced with a storage battery that discharges a large current or a DC generator for large current generation. Further, instead of the large current power supply unit 10, a large current / low voltage DC power may be directly supplied from the outside to the input side (−) electrode terminal 30c of the two-power fusion circuits 30 and 30X.
About the rectifiers D5 and D6, the position (installed at the center of the I connection line 22i and the J connection line 22k) installed in the second embodiment (two power fusion circuit 30X) is changed, and the first transformer 22X of the H connection line 22g is changed. It is also possible to provide the rectifiers D5 and D6 on the secondary coil side of the second transformer 22Y and the secondary coil side of the second transformer 22Y at a position sandwiching the tap wire 22l. The cathode side of the rectifiers D5 and D6 is provided toward the connection terminal of the first transformer 22X or the second transformer 22Y.

  1, 1X ... Power supply device, 10 ... High current power supply, 20, 20X ... High voltage power supply, 30, 30X ... Two power fusion circuit (two power fusion part), 40 ... Total power smoothing circuit ( Total voltage smoothing part), 60..Power regulator.

Claims (2)

A high-current power supply that can supply a large amount of power at a low voltage;
A high voltage power supply unit capable of supplying a high voltage having a higher potential than the large current power supply unit and a small current having a current value smaller than that of the large current power supply unit by a transformer having a primary coil and a secondary coil. When,
The low-voltage and high-current power supplied from the high-current power supply unit and the high-voltage and low-current power supplied from the high-voltage power supply unit are fused in the secondary coil to fuse power A two-power fusion unit that generates
A total power smoothing unit connected to the two power fusion unit so that the fusion power is supplied, and making the fusion power a smooth DC power;
A power supply apparatus comprising: a power regulator connected to the total power smoothing unit so as to be supplied with the smoothed DC power and having the smoothed DC power as an arbitrary output. The transformer of the high voltage power supply unit includes one primary coil in one iron core, or two in two iron cores, and two secondary coils.
The two power fusion part is:
A series connection line for connecting one end portions of the two secondary coils in series;
A tap line connected to the series connection line;
An input side (-) electrode terminal connected to the tap wire;
An end connection line connected to each other end of the two secondary coils to which the series connection line is not connected;
Rectifiers arranged respectively on the two end connection lines or the series connection lines;
An output side (+) electrode terminal to which both the end connection lines are connected together,
Connecting the large current power supply unit to the input side (-) electrode terminal, supplying a large current power at the low voltage to the two power fusion unit,
The high-voltage power supply unit includes a parallel connection line connecting the two primary coils in parallel, or one primary coil common to the two secondary coils,
The two-power fusion unit includes the high-voltage and small-current power generated inside the two secondary coils, and the low-voltage and large-current power supplied from the large-current power supply unit. 2. The power supply device according to claim 1, wherein fusion power is generated inside the two secondary coils in a high voltage power supply unit to generate high power and high current fusion power.

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